Actiheart User Manual 5.1.31 (Jun 2022)
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HRV Bandwidth / Frequency: This menu item allows the user to modify
bandwidths used to calculate VLF, LF and HF frequency content from the IBI
signal. The default values are those standardised for human study, but alternate
frequency bands can be applied either for animal or human use.
3.2.5 Copying IBI
Monitoring Data to
the Clipboard
Data can be copied from the software for pasting into an external program of the
user’s choice. The selected data is exported to the clipboard and can then be
pasted from there into, for example, Microsoft Excel. There are two options
accessed from the Copy menu of the analysis screen:
Analysis IBI data:
This function takes the analysed raw data and places it on the
clipboard. The output provides a header containing information about the
recording, the device and the User. Next is a listing of time stamped IBIs (in ms)
for every beat in the analysis period. Note that all of these data are for the
selected analysis period
only.
Analysis Results:
This function takes the information from the IBI statistics area
and places it on the clipboard. The output provides a header containing
information about the recording, the device and the User. This is followed by a
listing of time stamped IBI analysis results as displayed on screen. Note that all
of these data are for the
selected analysis period
only.
3.2.6 Exporting IBI
Monitoring Data
It is possible to export the time stamped IBI data as a
text
file by selecting the
required region (as described above) and clicking Export -> Time stamped IBI
data from the menu. Take note of the confirmation message which contains the
file name and folder for t
he data. The software uses the “Actiheart data” folder as
the default folder and the file name has the following format:
IBI ddmmmyyyy hhmm.txt
Where ddmmmyyyy is the date of the export and hhmm is the time of the export.
3.2.7 Editing
IBI Data.
In some circumstances, IBI data may be noisy or contain periods of missed
beats. If this is the case then the
recording should be opened in the “Full
Waveform” window to examine the period in greater resolution. This can be
performed both with Full Waveform and Actiheart 5 IBI recordings, and will save
modified IBI data which will then be used within re-opening the IBI Analysis
window.
3.2.8 Legacy
IBI Analysis
Function
The Actiheart 4 HRV System was constrained by the limits of
the Actiheart 4’s
internal data collection. This was limited to a maximum of 2000ms IBI, and
carried no evaluation of whether each individual recorded ECG peak was likely
correct on incorrect in relation to recorded beat sequence. Actiheart 5 IBI and
Full Waveform recordings are not subject to these restrictions. In contrast, they
